Visible crew/equipment: In the scene where Scully is performing the autopsy on Micah Hoffman, you can see a shadow of someone moving across the wall behind her.

Plot hole: In this episode, Mulder and Scully are watching a film about them that was shot sixteen months ago. But that would have been sometime in late 1998, when Mulder and Scully were not on the X-Files. But yet they're in Skinner's office at the beginning. If they had shot the film in consistency with the current timeline, (2000) then the film would have been shown in late 2001. But in that time, Mulder was missing and Scully had a newborn. if anything, she would have seen the movie with Doggett. Somebody didn't plan ahead...